Gerard Butler wears an unidentified watch

Gerard Butler wears a black tactical watch as Mike Banning in London Has Fallen (2016). The close view shows a chunky black-cased watch with a dark dial on a black strap, the rugged kind that fits the Secret Service agent in a firefight. The dial doesn't give up a maker, so it stays open. Recognise it, or want to guess? Drop it in the comments.